Electric storage battery



FIG. 1 is a perspective view from above one side and one end of an electric storage battery;

FIG. 2 is a top plan view thereof;

FIG. 3 is an elevational view from the other side of FIG. 1; and

FIG. 4 is a side elevational view from the other end of FIG. 1. 

The ornamental design for an electric storage battery, as shown. 